Phenolylazoindole scaffold for facilely synthesized and bis-functional photoswitches combining controllable fluorescence and antifungal properties using theoretical methods
作者:Haoran Hu、Yu Liu、Junqi Li、Chong Zhang、Chao Gao、Chengguo Sun、Yang Du、Bingcheng Hu
DOI:10.1039/d3ob01751f
日期:——
substituents at the R1 and R2 positions. The results indicated that azo photoswitches based on the phenolylazoindole scaffold had stationary photophysical properties and wouldn't be excessively affected by modifying the functional groups. Compounds A4 and B2, which were modified with an aryl group, also exhibited fluorescenceemission properties (the quantum yields of A4 and B2 were 2.32% and 13.34%)
功能化是光电开关应用的主要挑战。为了开发具有稳定光物理性质的新型双功能偶氮光开关,通过核磁共振波谱研究和高分辨率质谱(HRMS)设计、合成和表征了一系列苯酚偶氮吲哚衍生物。在此,UV/Vis 和1 H NMR 光谱显示 PSS顺式和 PSS反式的光稳态 (PSS) 比例分别为 76-80% 和 68-81%。此外,化合物A2-A4和B2的热半衰期( t 1/2 )范围为0.9至5.3 h,受R 1和R 2位不同取代基的影响。结果表明,基于苯酚偶氮吲哚支架的偶氮光开关具有稳定的光物理性质,并且不会受到官能团修饰的过度影响。芳基修饰的化合物A4和B2也通过R 2位柔性共轭结构(苯)的修饰而表现出荧光发射特性( A4和B2的量子产率分别为2.32%和13.34%)。 值得注意的是,化合物C1是通过药效基团修饰获得的,以获得针对三种植物真菌:立枯丝核菌( R. solani )、灰葡萄孢( B. cinerea
Reduction of 12-acetylaminoindolo[1,2-c]quinazolines. Preparation of derivatives of the new heterocyclic system indolo[3,2-d][1,3]benzodiazepine